Locomotive.



PATENTED NOV. 12, 1907.

J. E. FRIERMOOD.

LOGOMOTIVE.

APPLIOATION FILED JULY 12, 1906.

3 SHEETS-SHEET 1.

erm/00d guna/wko@ No. 870,769. PATENTBD NOV. l2, 1907.

J. E. FRIERMOOD.

. LOCOMTIVB.

PPLIOATION FILED JULY 12, 1906.

; 3 SHEETS-SHEET 2. Z0

MM x t No. 870,769. PATENTED NOV. l2, 1907.

J. E. FRIERMOOD LOGOMOTIVB.

APPLICATION FILED JULY 12, 1906.

8 SHEETS-SHEET 3.

@1.44 awww JOHN EARL FRIERMOOD, OF EVERETT, WASHINGTON.

LOCOMOTIVE Specification of Letters Patent.

Patented Nov. 12, 1907.

Apolicatiou filed July 12.1906- Sril N- 325.913.

. in which motion is transmitted from the engine piston- Ito the drivingaxles through-the medium of interposed gearing. Locomotives of this typeare ordinarily emi ployed for heavy hauling, as for instance, inlogging' and'mining operations, and while capable of exerting greattractiveforce, are inefficient for several reasons.

`1n the first-place, being primarily work engines, they are geared forlow speed, and are incapable of high speed', even when running light, asfor instance, when returning with empty cars to the point of loading.`Furthermore, the gears are subjected to excessive wear both by reasonof the character oi the gear mountings and also by reason of the factthat the gearing is in action evenwhen the locomotive is running downgrade with the kthrottle closed. In addition to these inefficiencies,geared locomotives of some makes employ fiexible line shafts, thestrains on which are excessive,

f particularly in rounding curves.

Having in mind these commonly recognized deficiencies, the object of myinvention is to produce a geared locomotive', including provision forreorganizing the gearing and for totally disconnecting the same, inorder `that the locomotive may be geared low for a .heavyload or steepgrades, geared high for making quick return runs with fempties, orthrown entirely out 'of gear to save the wear and tear on the parts when`running down grades.

Another object or' the invention is to provide. valvecontrolled,fluid-operated gear controlling mechanism whereby the changing of thegearing, as well as its connection and disconnection, will be under thecontrol oi the engineer, but accomplished by fluid pressure.

A still further object oi the invention is to reduce the i wear andstrains and to avoid any tendency of the Vtrucks toV climb the rails, bymounting the driving gmrs ori the engine frame and the driven gears onthe driving i axles, and by providing intermediate gearing includingtional elevation of a locomotive constructed in accordance with myinvention. Fig. 2 is a side elevation of one of the trucks, the adjacentportion of the engine frame and certain elements of the gearing. Fig. 3is a vertical section designed more particularly to show the mountingfor the shaft of the shiftable gear Wheel. Fig. 4 is a sectionalelevation designed to show the relation of the engine frame, the fronttruck, and the associated gearing. Fig. 5 is a vertical section of thefront truck and associated parts, and showing more particularly thearrangement of the gearing and the gear controlling mechanism, thegearing being shown disconnected. Fig. 6 is a sectional elevation withthe parts geared for high speed, and Figs. 7 and 8 are detail sectionalviews of the gear controlling valve.

Y Each part is designated by the same reference character in all of theviews.

The locomotive is of the double-ended'type, and includes a boiler 1 anda cab 2, of usual or preferred construction, and an engine frame 3preferably including 'upper and lower I-beams 4 and 5 located at eachside of the locomotive. The engine frame is carried by V:front vand reartrucks 6 and 7, in any suitable manner,

brackets 8 being secured to the front ends of the upper I-beams 3 andresting upop springs 9 interposed between the brackets and the upperside bars 10 of the trucks to absorb the vibration of the latter, seeFigs, 4 and 5.

The side framesll and 12 of each truck are provided, as usual, withvertical guides 13 in which are slidably mounted the journal boxes 14 othe front and rear driving axles 15 and 16. At the outer ends of theaxles are carried the track wheels 17, the wheels at each side of thetruck being connected by a coupling rod 18. Keyed or otherwise securedon the axles l5 and 16 are spur gear Wheels 18 and 19 of differentdiameters, either of which is designed to be engaged and driven by ashiftably mointed intermediate gear 20. For convenience of descriptionthe gears 18 and 19 will be referredqtdas the high and low speed axlegears and the gear 20 as the shitable intermediate gear. Since the gearl20-is designed to mesh with and drive the gears 18 and 19.

rigid with the axles, it is necessary to vmount the gear- 20 on asupportwhich will move` With the axles asthe positions of the latter vary withrespect to the engine .1.00 Iframe, particularly in passing over a poorroad bed or For this reason the mounting for the" plemental boxes 23carried. by-the driving axles at the inner side of the gears, see Figs.4, 5 and 6.

Above the beams, and spaced therefrom, are a pair of horizontal plates24 and 25 likewise supported from 4 the boxes 1.4 and 23. The I-beamsand plates are provided with longitudinal guides 26 between whichreciprocate a pair of sliding boxes 27 and 28 in which is journaled ashiftable shaft section 29 to which the shiftable gear 20 is keyed.Thus, while the gear 2() is shiftshaft 34 journaled in the brackets 8 atopposite sides of the locomotive and provided with crank wheels 35 andeccentrics 36, sce Fig. 4 It will be noted that the non-shiftablesection 30 of the intermediate shaft is supported by the engine frame,while the shiftable section 29 of said shaft is supported from theaxles. It will be evident, therefore, that the flexible coupling 31between the shaft section not only permits the shifting of the section29, but also absorbs the relative vibration of the axles and engineframe in order to preventsuch vibration, when traversing an uneven pieceof track or rounding curves, from racking the gearing, the gears 32 and33 moving together with the engine frame, and the gears 18, 19 and 20moving as a unit with-the axles.

The shaft 34, which is the driving shaft of the mechanism, is connectedby means of the crank wheels 35 and pitman 37 with cross-heads 38movable on the guide 39. The cross-head 38 is connected to thedouble-ended piston rod 40 of a piston 41 reciprocating in a cylinder 42secured to the side of the engine frame intermediate of the trucksiandpreferably somewhat forward of the cab. These connections between thepiston 41 and the front driving shaft 34 are of course duplicatedbetween the piston and the rear driving shaft, see Fig. 1, the onlydifference being that the rear end of the piston rod is longer than thefront end thereof because of the greater interval between the cylinderand the rear driving shaft, the rod being therefore provided with anintermediate cross-head 43 supporting the piston rod at a pointintermediate of the rear cross-head 38 and the cylinder.

The cylinder 42 receives stealn from the dome of the boiler through asteam pipe 44 and is controlled, as usual, from the throttle, whichalso'serves to control the engine mounted at the opposite side of thelocomotive, it being understood that the cylinders and the connectionsthereof with the front and rear driving shafts, are the same at bothsides of the structure. 1t will also be understood that the cylindervalves are operated by valve gears dl'iven in the usual manner from thecccentrics 36 on the front driving shaft. It will now be seen that thefront and rear driving shafts-are driven from the engines at oppositesides o1' the locomotive and are geared to the driving axles through themedium of gearing which may be reorganized for high or low speed ortotally disconnected from the axles, and which comprises two units andan intermediate flexible coupling, one unit being mounted on the engineframeand the other on the axles so that relative vibration of the axlesand frame is absorbed by the flex ble coupling and not by the gears,thus eliminating the greatest element of wear and avoiding the torsionalstrains usually incidental to the operation of geared locomotives. Inaddition to this novel arrangement of the gearing, I have provided meansfor shifting the gear 20 in a direction transverseto its axis for thepurpose of presenting it in mesh with the gear 18 for high speed, thegear 19 for low speed, or in an intermediate disconnected position inorder to avoid wear incidental to the operati-on of the gearing indescending grades, vand also to enable the driving mechanism to beinstantly disconnected from thevwheels when the brakes are applied.Attention may also be directed to the fact that this disconnection ofthe gearing minimizes the liability of the locomotive to climb the railswhen descending grades at high speed or in the event of a runaway.

To accomplish the shifting of the gear 20, I connect to the oppositeends of each sliding journal box 27 and 28 a pair of toggles 45 and 46,see Fig. 5, having their outer ends connected to fixed parts 47. To'theknuckles of these toggles'are connected depending links 48 pivotallyconnected at their lower ends to oppositely extending arms 49constituting elements vof a rocker which also includ es a rock shalt 50provided at its inn er end with a crank 51 and journaled in suitablebearings 52'l secured to the under sides of the I-beams 31 and 32, seeFigs. 3, 5'and 6. The crank 5]. is retained in an intermediate positionby springs 52 and '53 opposed to the opposite sides of a slottedextension 54 of the crank 5l, sce Figs. 3 and 5, said springs encirclinga guide rod 55 which is passed through the slotted extension 54 of thecrank and retained at its opposite ends by lugs which serve as abutmentsfor the outer ends of the springs. When the crank 51 is in theintermediate position shown in Fig. 5, where it is retained by thesprings 52 and 53, as stated, the gear 2() will occupy itsintermedi-.rte disconnected position, sutlcient clearance being affordedbetween said gom; and the gears 18 and 1.9v to prevent accidentalengagement. If now, it is desired to gear the locomotive for high speed,it is simply necessary to throw the crank 51 to the left, as showninFig; 6, which will swing the rocker to straighten out the toggles 45and allow the toggles 46 to flex upwardly. This operation of the toggles45 will shift the journal boxes 27 and 28 to the right, or front, thusmoving the gear 20 into mesh with the gear 18. lf, on the contrary, itis desired to gear the engine for low speed, or great tractivc force, asfor insta ucc lor hauling a heavily loaded train, the rocker 50 is swungin the reverse direction, either from its intermediate position shown inFig. 5, or from its high speed position shown in Fig. G. The result ofthis revel-sc opcration of thc rocker will be to straighten out thc1ogglcs 46 and flex the togglcs 45, thus shifting the gear 2() into meshwith thc large axle gear 19.

While the rocker may bc operated in a variety of ways, I have devised asimple and citcient forni ofv mechanism whereby-steam from thelocomotive boiler may be utilized to shift the gearing, thev gearing bcbv adjacent axles, a support extended between and carried by said axles,a journal box slidable on said support, a shaft journaled in said box,an intermediate gear mounted on the shaft and movable with the box toengage either of the axle gears. and a connection between theintermediate gear and the driving mechanism.

1l. ln a geared locomotive, the combination with an engine frame, trucktrames, and axles, ot' drivingl mechanism carried by the eugiiie frame,axle gears ot' dierent dialneters mounted on adjacent axles, a supportextending between and carried bv said axle a journal box slidabl'e onthe said support, a shaft comprising flexibly connected sections one ot'which is ournalcd in the engine frame and the other in the journal box,gearing hetweeii'said shaft and the driving mechanism. and anintermediate gear mounted on one of the shaft sections and shit'tablewith the journal box to engage either ot' the axle gears.

1 ln a geared locomotive. the combination with the engine frame, truckframes. and axles, ot' driving mechanism mounted on the frame. und meansfor gearing the drivin.;lmechanism alternately to different axles.

lil. In a geared locomotive, the combination with au engine frame, truckframes, and axles, of driving mechanism mounted on the engine frame, andlluid operated means for throwing the driving mechanism into and out ofgear with an axle.

14, In a gru-tred locomotive, the combination with an cn gine trame,truck frames, and axles, of driving mechanism carried by the engineframe, gearing between the driving mechanism and one of the axlessaidgearing including a tlexible connection to accommodate the relativemovement of the engine frame and the drivenvaxle and also including twogears one of which is carried by an axle, and means for throwing saidgears into and out of gear.

l5. in a geared locomotive, the combination with an engine frame, truckframes, and axles, of driving mechanism mounted on the engine frame. anaxle gear fixed to one oi' the axles. and gearing between the drivingmechanism fand said axle gear, said gearing including a tlexibleconnection accommodating the relative movement of the eugine frame andaxle and also including a gear shiftable into and out of mesh with theaxle gear. l

1G. ln a geared locomotive, tlie combination with the engine frame,truck frames, and axles, of driving mechanism, an axle gear iixed to oneof the axles, a suppoi't carried by said axle, and gearing between thedrivingI mechanism and the axle gear, said gearingl including a gearwheel shit'table ou the support to engage the axle gear.

1T. In a. geared locomotive, the combination with an engine frame, truckframes, and axles, of driving mechanism mounted. on the engine frame, asupport extending between adjacent axles and carried therebyindependently of the truck frame, an axle gear tixed to one of saidaxles, and gearing between the driving mechanism and the axle gear, saidgearing including a tiexible connection accommodating the relativemovement of the engine frame and axles and also including a gearshiftable on the support to engage or disengage the axle gear.

18. In a geared locomotive, the combination with an engine frame, cab,truck frames and axles, of drivingmechanism, gearing between the drivingmechanism and an axle, andv tluid-operated gear controlling mechanismincluding a manually-operated device located in the cab of thelocomotive.

1S). ln a geared locomotive, thel combination with an engine traine,truck frames and axles, of driving mechan ism, gearing between tiledriving mechanism andan axle, gear controlling means supported by theaxle, and a manually-operated member controlling the operation of saidmeans and supported from the engine frame.

20.l 1n a geared locomotive, the combination with the engine frame,truck frames, and axles, of driving mechanism, gearing betweenthedriving mechanism and an axle, and duid-operated gear controllingmechanism operative to cause the connection or disconnection of thedriving mechanism and axle.

21. In a geared locomotive, the combination with the engine frame, cab,truck trai-nes, and axles, of drivingr mechanism, gearing between thedriving mechanism and one of the axles, fluid=operated means supportedfrom adjacent axles to move the gearing into and out of gear, and meanslocated in the locomotive cab and controlling the operation of saidfluid-operated means.

22. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of driving mechanism, gearing between the drivingmechanism and an axle, and fiuidoperated means controlling the operativeconnection between the drivingmechanism and axle, said means includinga` cylinder/a piston therein, and a controlling valve for the motivefluid.

2li. lii a geared locomotive, the combination with a cab, engine frame,truck frames, and axles, of driving mechanism, gearing between thedriving mechanism and an axle, and means controlling the operativeconnection between the drivi mechanism and said axle, said meansincluding a cylinder supported from the axle, a pi'ston in the cylinder,and a valve controlling the supply of4 motive nid to the cylinder andlocated in the locomotive cab.

E14. In a geared locomotive, the combination with the engine frame,truck frames, and axles, of driving mechani, u, gearing between thedriving mechanism and one of the axles and including a shiftable member,and fluidism` gea ring between the driving mechanism and one of theaxles and including a gear wheel shiftable into and out of gear, and{luid-operated means for shifting said gear wheel.

2G. In a geared locomotive, the combination with a cab, engine frame,truck frames, and axles, of driving mechan-` ism. gearing, between thedriving mechanism and an axle, including :i shiitablc gcaiwheel,iiuidoperated mechanism for shifting the gear wheel, and a valve locatedin the locomotive cab and controlling the supply of motive uid to theHuid-operated shifting mechanism.

27. in a geared locomotive, tbe coni'bi'nation with an engine frame,truck frames, and axles, ot' driving mechanism, gearing betweeu thedriving mechanism and one of the axles and including :i shittable gearwheel, uidoperated means supported trom the axle and operative to shiftthe gear wheel, anda iinid controlling valve supported from the engineframe.

28. In a geared locomotive, the combination with `the engine frame,truck frames, and axles, of driving mechanism, an axle gear fixed to oneof the axles, gearing between the driving mechanism and the axle gearand including a shiftable gear wheel supported from adjacent axles andmovable into and out of mesh with the axle gear, and iluidoperated meansfor shifting said gear.

29. 1n a geared locomotive, the combination with the ,engine frame,truck trames, and axles, of a support extending between and carried byadjacent axles, :in axle gear fixed to one of the axles, drivingmechanism, and gearing connecting the driving mechanism with an axle andincluding a gear wheel shiftable on the support to engage 'anddisconnect the axle wheel, and fluid-operated mechanism also mounted onthe support and operative to shift the gear wheel.

30. In a geared locomotive, the combination with the engine frame, truckframes, and axles, ot' driving mechanism, an axle gear, gearing betweenthe driving mechan ism and axle, including a gear wheel shit'table intoand out of mesh with the axle gear, a spring retaining the gear wheel inone position, and duid-operated means for moving said gear wheel toanother position in opposition to the spring.

31. 1n a geared locomotive, the combination with the engine frame, truckframes, and axles, of driving mechanism, gearing connecting the drivingmechanism to the axle, an element shiftable to bring the gearing intogear, and means including a toggle for shifting said element.

32. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of driving mechanism, gearing between the drivingmechanism and aiiaxle and including a sliiftable element, and afluid-operated toggle for shifting said element. l

33. In a geared locomotive, the combination withthe engine frame, truckframes, and axles, of driving mechanism, gearing between thedriving-mechanism and an axle and including a shiftable element, aspring yieldingly retaining said element in one posititn, and a togglefor moving said element in opposition to the spring 34. I'n a gearedlocomotive, the combination with the engine frame, truck frames, andaxles, ot driving mechanism, gearing between the driving mechanism andan axle and including a shiftable element, a spring yieldingly retainingsid element in one position, and a fluid-operated toggle for moving suchelement in opposition to the spring.

In a geared locomotive, the combination with the engine frame, truckframes, and axles, ot' driving inechanism, gearing between the drivingmechanism and an axle, including a shiftable gear wheel, a shaftcarrying said wheel, a shiftable journal box for said shaft, and atoggle operative to shift the journal box.

3G. In va geared locomotive, the combination with the engine frame,truck iframes, and axles, of driving mechanism, an" axle gear.intermediate gearing including a gear rwheel shittable into and out ofmesh with the axle gear, a shaft for the shiitable gear wheel, ashittable journal box `for said shaft, and a huid-operated toggle formoving the box.

37. ln a geared locomotive, the combination with the engineiframe, truckframes, and axles, ot' driving mechanism, gearing intermediate-of thedriving mechanism and an axle and including a member shiftable into andout of operative position. a toggle for shifting said member, a rockeropt-rating` the toggle, and fluid-operated means for moving the rocker.

Zi In a geared locomotive, the combination with an engine frame. truckframes, and an axle, of a support e'xtending between and supported bythe adjacent axles, driving mechanism. gearing between the drivingmechanism and an axle, said gearing including an axle gear fixed to theaxle and an intermediate gear shit'table into and out of engagement withthe axle gear, said shiftable gear being mounted-on the support extendedbetween the axles, a rocker also mounted on'l said support, and a togglearrangedto shift the gear and operated by the rocker.

si). In a geared locomotive, the combination with the engine frame,truck frames, and axles, of a support extendingl between adjacent axlesand carried thereby independently ot' the truck frames, drivingmechanism carried byihe engine trame, an axle gear fixed to one of theaxles, gearing interposed between the driving mechanism and the axlegear and including an intermediate gear wheel shiftable into and out ofoperative position, n shaft for the shi'table gear` wheel, journal boxessupporting said shaft and sbittable on the support which extends betweenthe axles. a rocker also mounted on the support and operativelyconnected to the journal boxes to shift the same, a cylinder mounted onthe support, means for supplying motive fluid thereto, and a pistonmovable in the cylinder and connected to .the rocker to operate thesame.

4U. In a geared locomotive. the combination with the engine trame,`truck frames, and axles, of driving mechanism carried by the enginefraaie, an axle gear tixed to one of the axles, a `support extendingbetween and carried by adjacentaxles, sliding journal boxes, a rockerand a cyllnder all carried by said support, a shaft mounted in theAjournal boxes. gearing between tliedriving mechanism and the axle gearand including-a gear wheel mounted on the shaft. and shittable therewithto engage and disconnect the axle gear, a toggle arranged to move thejournal boxes to shiit the gear wheel, a connection between said toggleand the rocker, a piston mounted to reciprocatelin the cylinder andconnected to the rocker, and means for snpplying motive fluid to thecylinder.

'415 ln a geared locomotive, the combination with the engine frame,truck frames, and axles, of driving mechan- `lem, and Huid-operatedmechanism for throwing the driving mechanism into operative relationwith different axles alternately.

4:2.,1n a geared locomotive, the combination with the engine frame,truck frames, and axles, of driving mechanism. gearing, andduid-operated means for establishing conection between the drivingmechanism and either of two axles vthrough the medium of said gearing.

43. in a geared locomotive, the combination with the engine trame, truckframes, and axles, of axle gears oi' i different diameters fixed toadjacent axleman intermediate gear adapted to engage either of said axlegears, uidoperated mechanism for shitting the intermediate gear, andgearing between the intermediate gear .and the driving mechanism.

l1. In a geared locomotive, the combination with the cab, engine frame,truck frames, and axles, of axle gears ot' different diameters iixed toadjacent axles, driving mechanism, gearing for connecting the drivingmechanism with either axle gear and including a gear wheel shiftableinto engagement with either axle gear, duid-operated mechanism forshifting the intermediate gear, and a controlling valve located in thelocomotive cab and controlling the operation of the gear shiftingmechanism.

45. ln n geared locomotive, the combination with an engine frame, truckframes, and axles, o1 driving mechanisui carried by the engine frame,gearing adapted to conncct the. driving mechanism to either of twoaxles, and lluideoperated gear controlling mechanism.

41;. in a geared locomotive, the combination with the engine frame,truck frames, and axles, of driving,r mechanism carried by the engineframe. gearing for connecting the driving mechanism with either ot' twoadjacent axles, a support extending between said axles and carriedthereby, duid-operated gear clontrolling means carried by said support,and a controlling valve for said means.

4T. ln a geared locomotive, the combination with the engine frame. truckframes, and axles, of axle gears carried by adjacent axles, a gear wheelsbittable to engage either axle wheel, a support extending between andcarried by the axles. means mounted on said support for shifting thegear wheel, and an operative connection between said gear wheel and thedriving mechanism.

4S. ln a geared4 locomotive, the combination with the engine frame,truck trames, and axles, of driving mechanism, axle gears ot differentdiameters tixed to adjacent axles, a support extending between andcarried by said axles, a gear wheel carried by said support andshit'table to engage either axle wheel, duid-operated means carried bysaid support to shift the gear wheel, and an operative connectionbetween the shiftable gear wheel and the driving mechanism. i

49. in a geared locomotive, the combination with an engine trahie, trucktrames, and axles, of axle gears fixed to adjacent axles, a supportextending between said axles und carried thereby, a gear wheel shiftableon said support to engage either axle wheel, a rocker also carried bythe support and movable to shift the gear wheel, and means for operatingthe rocker.

50. 1n a geared locomotive, the combination with the engine frame, truckframes, and axles, of driving mechanism, gearing including a shittableelement movable to cause :inoperative connection to be establishedbetween the driving mechanism and either ot two axles, and togglemechanism for moving said shiftable member in opposite directions.

51. In a geared locomotive, the combination with the engine frame, trucktrames, and axles, of axle gears xed to adjacent axles, an intermediategear shiftable to engage either axle gear. toggle mechanism for shiftingsaid intermediate gear, and driving mechanism for said gear.

52. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of axle gears fixed to adjacent axles, anintermediate gear shittable to en gage either axle gear, toggles forshifting said intermediate gear, and operating means common to saidtoggles.

53. ln a geared locomotive, the combination with the engine fraaie,truck frames, and axles, ofaxle gears fixed to adjacent axles, anintermediate gear shiftable to engage either :n le gear, toggles formoving the intermediate gear in opposite directions, and a rockerconnected to said toggles. I 1

.'i-i. In a geared locomotive, the combination with an engine trame,truck frames, and axles, of axle gears fixed to adjacent axles, anintermediate gear shittable to engage either axle gear, drivingmechanism for the intermediate gear, and a huid-operated toggle forshifting said gear.

55. In a geared locomotive, the combination with the engine frame, truckframes, and axles, oi axle gears iixed to adjacent axles, anintermediate gear shittable to engage' either axle gear, driving meansfor the intermediate gear1 toggles for shifting the intermediate gear, arocker for operating the toggles, and duid-operated means for movingthev rocker.

56. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of driving mechanism, gearing for connecting thedriving mechanism to either of two axles, said gearing including ashiftable member, means yieldingly retaining said member in anintermediate position, and means for positively moving said member ineither direction from said position.

57. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of axle wheels carried by adjacent axles, anintermediate gear wheel shiftable to engage either axle wheel, means foryieldingly retaining the gear wheel in an intermediate position and outof operative relation with both axle wheels, and means for shifting thegear wheel into engagement with either axle gear.

58. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of axle gears carried by adjacent axles, anintermediate gear shiftable to engage either axle gear, means yieldinglyretaining the shiftable gear in an intermediate position, andfluid-operated means for shifting the intermediate gear in eitherdirection to engage an axle gear.

59. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of axle gears carried by adjacent axles, anintermediate gear shiftable to engage either axle gear, a rocker movableto shift the intermediate gear, counter active springs coacting with therocker to throw the intermediate gear into disconnected position, andHuid-operated means for moving the rocker to shift the intermediate gearinto engagement with either of the axle gears.

60. In a geared locomotive, the combination with the engine frame, truckframes, and axles, of driving mechanism, gearing adapted to connect thedriving mechanism with either of two axles, and gear controllingmechanism including a cylinder, a piston therein, means for leadingmotive iiuid to the opposite ends of the cylinder, and a controllingvalve movable to permit the motive fluid to be supplied to either end ofthe cylinder and exhausted from the opposite end thereof or to placeboth ends of the cylinder in communication with the exhaust.

61.1In a geared locomotive, the combinationwith the engine frames,axles, and truck frames movable relative to the axles and supporting theengine frame. of driving mechanism mounted on the engine frame, a shaftdisposed transversely of the locomotive and comprising Ilexiblyconnectedsections operatively related to the driving mechanism and an axlerespectively.

62. In a geared locomotive, the combination with the engine frame,axles, and truck frames movable relative to the axles and supporting theengine frame, of driving mechanism mounted on the engine frame andincluding a driving shaft disposed transversely of the locomotiveadjacent to one of the truck frames, and a second shaft also disposedtransversely of the locomotive and having exihly connected sections, oneof which is geared to the driving shaft and the other of which is'gearedto an axle.

63. In a geared locomotive, the combination with the engine frame, truckframes and axles, of a shaft disposed `transverse to the locomotive andcomprising iiexibly` connected sections, driving mechanism mounted onthe engine frame and arranged to drive said shaft, and variable gearingwhereby the axles of the locomotive may be driven at relatively high orlow speed through the medium of lthe transverse shaft.

G-i. In a geared locomotive, the combination with an engine frame, truckframes and axles, of transverse driving shafts mounted on the engineframe over the truck frames, driving mechanism mountedon the engineframe and arranged to operate the driving shafts, and gearing hetweeneach of said driving shafts and an axle. y

65. In a geared locomotive, the combination with the engine frame, truckframes and axles, of driving mechanism on the engine frame, transversedriving shafts lo; cated adjacent to the opposite ends of the engineframe and arranged to be driven by the driving mechanism, gearingbetweeneach driving shaft and an axle. and means for throwing the gearing intoand out of gear.

66. In a. geared locomotive, the combination of an engine frame, truckframes and axles, of driving mechanism on the engine frame, transversedriving shafts likewise mounted on the engine frame. separate sets ofgearing connecting the respective shafts to different axles, and meanst'or changing the speed of said gearing.

G7. A geared locomotive including axles, truck frames supported by theaxles and movable relative thereto, an engine frame supported by thetruck frames, driving mechanism mounted on the engine frame. gearingbetween the driving mechanism and an axle, said gearing being mountedindependently of the adjacent truck frame to prevent rack'ing of thegearing hy the vibration of said truck frame. and means for shiftingr anelement ot' said gearing to disconnect said axle and to operativelyconnect a different axle to the driving mechanism.

GS. A geared locomotive including axles, truck frames. springssupporting the truck frames from the axles and permitting movement of.said frames relative to the axles. an engine frame carried by the truckframes, said truck 'frames having limited movement relative to he'engineframe, driving mechanism mounted on the engine frame, and gearing, theelements of which gearing are supported from the engine frame and axlesexclusively to prevent racking of the gearing by the vibration of atruck frame and said gearing including units disposed transversely ofthe locomotive and relatively movable to accommodate the relativemovement ot' the engine frame and axles.

69. In a geared locomotive, the combination with an engine frame, trucktrames, and axles, of driving mechanism, and means for operativelyconnecting the driving mechanism with ditferent axles alternately.

70. In a geared locomotive, the combination with an engine frame, truckframes, and axles, of driving mechanism, and means for operativelyconnecting the driving mechanism with different axles alternately, saidmeans heing arranged to drive one axle at a greater speed than theother. l

In testimony, that I claim the foregoing as my own; I have heretoatllxed my signature in the prcsenceot two witnesses.

JOHN EARL FRIERMOOI).

Witnesses ScHurLnn Dumm-1. DANIEL F. infirme.

